Universal Shower Pan molds simply make economic sense - since you can produce any number of different size and shape shower pan castings from a single "universal" mold. If size is an issue, you can order a smaller overall mold size (see chart below for available sizes). Universal Shower Pans can be cast at full size (as shown below), or smaller. Determine what size shower pan you need, and define that around the drain located where you need it. All 1050 Universal Shower Pans have center drains and a minimum drain slope of 1/4" per foot of horizontal distance. All 1050 Universal Shower Pans have center drains and a minimum drain slope of 1/4” per foot of horizontal distance. Surface is textured.